Leaf Pack Experiment Details at TW
Placement Information

Placement Date Sept. 18, 2026
Number of Packs Placed 1
Placement Air Temperature 23.0 °C
Placement Water Temperature 14.0 °C
Stream Habitat Type Riffle
Leaf Pack Type and Composition

Predominant Leaf Species:



Retrieval Information

Retrieval Date Sept. 18, 2026
Number of Packs Retrieved 1
Retrieval Air Temperature Unknown °C
Retrieval Water Temperature Unknown °C
Storm and Non-Storm Events

Did storms occur while your leaf packs were in the stream? Unknown
Did flooding occur? Unknown
Was this site experiencing a drought during your experiment? Unknown

Summary Analysis
Results Overview

Total Number of Individuals Found 29
Pollution Tolerance Index Score 14
Pollution Tolerance Index Rating Fair - Substantial pollution likely
Percent EPT 72.41%




Comments

Pollution Tolerance Index (PTI Score) = 84.